Cultivator-shovel.



J. P. STANZA. CULTIVATQR SHOVBL. APPLICATION TIL-ED 00m. 14;'191'1.

1,037,355. Patented Sent.3,191 2.

- JOHN P. STAhTZA, OF EATON, OHIO.

CULT IVATOR-SHOVEL.

- Specification of Letters Patent.

Patented Sept. 3, 19 12.

Application fi1ed-0ctober 14, 1911. Serial No. 654,583.

To all whom z'tmay concern Be it known that I,JoHN P. SrANzA, a citizenof the a United States; resi'ding at Eaton, in the county of Preble andState of Ohio, have invented certain new and useful Improvements inCultivator- Shovels;

, andl do declare the following to be a full,

clear, and exact description of the invention,

' such as willenable others skilled in the art to which it appertainstomake and use the. same,referencebeing had tothe accompanying drawings,and to the-letters and figures of reference marked thereon, 'which forma part of this specification.

i This invention relates to cultivator shovels for corn plows,- andcomprises certain essential improvements ,of the cultivator shovelslfown and described in former Letters Patent granted to myself,November 22-,

v1910,.No.976,518. r r

. The object of the present invention is to provide a cultivator shovelthat will-so act.

u on the ground to open itand'admit air thereto, and will cause the openground to, lie substantially level -as'the shovel passes .through, thusfilling the hollow formed by the shank. This is very essential forgrowing crops as the ground is not thrown out and allowed to dry out.

- A further object of the invention is to provide a shovel so formed asto meet with the-least resistance in passing through the ground. andfrom the upper surface of which-the earth will shed, .oyving to theparticular configuration of the shovel.

A further object of the invention is to provide a shovel which is aseasilyattachable to the standard as possible. The shovel is made in onepiece of steel so shaped as to form an easy and gradual curve or bend atthe point where the shank extends from the shovel. At this point and oneach side, the

blade extends in gradual curves so. that the upper surface of the,shovel presents, an unobstructed surface of suitable incline to causethe soil to pass therefrom as 'the shovel advances; On each side of thelongitudinal axis ofthe shovel, and near the shank, is formed adepression. These depressions in connection with the rearward points ofthe shovel which lie behind said depressions cause the ground to turnover and to fill the hollow formed by the shank. The ground is loosenedandis exposed to the air and as the shovel advances, the loosened groundfalls back into the hollow and rm:-

desirable.

sents a substantial level surface, a feature the soil which is highly inthe cultivation of Referring to the accompanying drawings, Figire 1 1s aside elevation of my improved cultivator shovel; Fig. 2 is a section onthe llne a'a. of Fig. 1; Fig. 3 is a top plan view of the shovel.

Asstated, the shovel is formed of a single sheet :of metal and ascompared with the shovel of my former" patent, there is no obstructingpart at the rearward end or else-;

,-where. The blade 1 from the front 0i: pilot end 2 extends rearwardly,gradually in- -creasing the width of the blade. In pracprefer the widthof the shovel and tice the axial length thereof to be approximatelyequalso that the junction'betweenthe shank and the blade shall lieforward of the rearward corners of the blade. These cutting edges of theblade are so formed as to enter the ground and to readily cut any weedsthat may lie in the paths of" said cutting edges. In the initialmovement of the ,shovel'the edges referred to do not lie flat upon thesurface of the ground, but enter the ground on a slight anglethereto andthe said edges lie in such positions as to readily cut-the weeds thatmight lie in the way. Extending from the rear end of the shovel andintegral therewith is the cultivator standard 6, ,which is curved incross section and terminates in a socket with apertured clamping ears 4extending therefrom? Within this socket the shank 3 is extended and issecurely'held in position connecting the shovel, by means of a draw bolt5, one endof which is provided with a. head, and the.oth'er endof whichis provide'd with a nut.

It will be seen that at the junction between the shank 6 and the blade,the latter inclinesoutwa'rdly to therear corners of the blade. This .isan important structural feature" as it is at these points the soilfallsback into the opening made by the shank as theshovel inoves forward.

It will be understood that there are gangs of the shovels-in a plow, andin describing the construction and peculiarities ofone, the othershovels are likewise described.

- It 'wil'l'be observedthat the cultivator This is a very desirablemanner of forming the shank and the shovel; it is very strong at thepoint of the union between the two the utmost and is thus capable ofstanding strain. The shovel adjacent to the. point where the standard 6joins it has a particular formation, which isessential and to whichparticular attention is sailed- This formation. consists of depressions:8 which g into the hollow created by the shank. In

" back of the thus loosening the soil and causing it to fall shovel, theair is freely admitted thereto, and the ground is left in a dirt will beconstantly advances in the earth, and the annoyance substantially levelcondition for "cultivation.

It will be readily seen that with shovels thus formed, with noobstructing, parts, the pushed oil" as the plow of having to clean theshovels of the cultivator at short intervals during the work of plowing,is avoided.

Having described my invention, I claim A cultivator shovel or bladeformed from a substantially triangular blank .of sheet metal, thetransverse rearward portion of 'the blade and the axial length thereofbeing approximately equal, the said blade being bent. on. itslongitudinal axis and tapered gtherefrom on each side and terminating inahollfow shank for the attachment of the cultivatorstandard, therearward portion of the blade being concaved on each side of thelongitudinal axis adjacentto the shank, and the rear corners of theblade lying rearwardly of the junction between the blade and the shankand joining the axis of the "blade by inclined edges, whereby the soildivided by the shank is caused to fall back into the out, substantiallyas described.

In testimony whereof I aflix my signa ture, in presence of twowitnesses.

JOHN P. STANZA;

Witnesses: R. J. MoCAR'rY, MA'rrHEw SIEBLER.

